Metal window



Aug, 11, 1959 R. A. GILLESPIE METAL WINDOW 2 Sheets-Sheet l OriginalFiled July l5. 1954 -f INVENTOR.

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Aug. 11, 1959 R. A. GILLESPIE 2,898,646

' METAL WINDOW Original Filed July 15, 1954 2 Sheets-Sheet 2 INVENTOR.Puss ELL GlLLEsP: E,

United States Patent iice 2,898,646 Patented Aug. 11, 1959 METAL WINDOWRussell A. Gillespie, Indianapolis, Ind., assigner, by direct and mesneassignments, of thirty-three and one-third percent each to Carl F.Spickelmier, Edith S. Greer, and Betty S. Spickelmier, all ofIndianapolis, Ind.

Original application July =15, 1954, Serial No. 443,675, now Patent No.2,804,954, dated September 3, 1957. Diviged and this application July25, 1955, Serial No. 523, 55

This invention relates to windows, particularly metalframe windows. Somefeatures of the invention are particularly applicable to windows inwhich the sash slide horizontally, while other features are as readilyusable with windows of other types.

The general object of the invention is to improve and simplify theconstruction and mounting of the sash in metal-framed windows therebyreducing cost of manufacture, promoting free sliding of the sash, andimprov ing the weather seal.

In carrying out my invention, I employ a metal window frame, havingspaced, peripherally extending anges projecting into the window openingto provide channels or grooves in which the sash are slidable. In thecase of a window having horizontally slidable sash, the sill of thewindow carries a friction-reducing metal strip which is grooved forsliding reception of the sash and which can be readily removed from theframe for purposes of cleaning when the sash are removed. To permitremoval of a sash, the head of the window frame is arranged to permitupward movement of the sash to the extent necessary to allow the loweredge of the sash to clear the groove in such strip, thus permitting thesash thereafter to be lowered out of association with the frame-head. Totake up clearances necessary for such operation and provide a weatherseal, the upper rail of each sash is equipped with buttons ofantifriction material which are spring-pressed against one wall of thesash-receiving groove to force the rail into sealing engagement with theopposite groovewall. Desirably the latter groove-wall is theintermediate one of the three flanges defining the two sash-receivingchannels and is embraced by a friction-reducing metal strip.

Like the window frame, the sash rails are metal, are mitered at thecorners of the sash, and at each corner the stock of meeting rails isformed, as by a stamping operation, to provide walls parallel to themiter joint, and screws extend through such walls to hold the meetingrails together. The meeting rails of the two sash are provided withinterengaging anges and with a locking device for locking the sash in'closed position.

Other objects and features of the invention will become apparent as the`detailed description of a preferred embodiment thereof proceeds.

The accompanying drawings illustrate the invention:

Fig. 1 is a` vertical section through a window in a plane perpendicularto the wall in which the window is located;

` Fig. 2 is a horizontal section through the window of Fig.1; A A

Fig. 3 is a fragmentalvertical section through the head of `the windowframe; t

Fig. 4 is a vertical section on the line 4-4 of Fig. 3;

Fig. 5 is a fragmental elevation of one corner of a sash with portionsof the joined rails broken away;

Fig. 6 is a fragmental vertical section illustrating details of apreferred form of window lock;

Fig. 7 is a fragmental elevation corresponding to Fig. 6; and

Fig.. 8 is a fragmental isometric view illustrating the mounting of thekeeper of the window lock.

The window illustrated in the drawing is of a type embodying horizontalslidable inner and outer sash. Conveniently, the head, side jambs, andsill of the window frame are all made of extruded metal stock having thesame cross-section. Such section embodies a web 20 adapted to extendgenerally in a plane perpendicular to the plane of the window opening.Projecting into the window opening from such web are three spacedflanges 21, 22, and 23 defining two channels in which outer and innersash, designated in their entirety by the reference numerals 24 and 25,are slidable. The middle ange 22 is preferably provided along its edgewith a head 22 which increases the space between the sash 24, 2S. Theinterior flange 23 is desirably located at the interior edge of the web20 and is coplanar with a ange 26 which projects outwardly. The web 20continues exteriorly of the window beyond the outer ange 21 for adistance and there is provided with anoffset portion 28 which, in theassembled frame, provides a rabbet groove for reception of storm sash.Outwardly beyond the offset portion 28, the stock has a flange 30extending in a plane parallel to that of the window opening, and fromthe outer edge of such ange there extends interiorly of the opening aflange 31. In the bases of the channels defined by the anges 21, 22, and23, the web is formed with inwardly opening longitudinal grooves 32which (Fig. 2) are adapted to receive resilient sealingstrips 33co-operating with the adjacent ends of the sash. Such sealing stripswill ordinarily be provided only in the side jambs, as other means areemployed for providing a weather seal along the other edges ofthe sash.

Each sash of the window comprises a pane of glass 35 bordered by top,bottom, and side rails all formed with inwardly opening channels toreceive the edge of the pane and a sealing strip 35' which embraces thepane-edge. The lower rail 36 of each sash is provided exteriorly withlongitudinal flanges 37 through whichthe weight of the sash is supportedfrom the sill of the window frame. The vertical sash rail 38 at the jambend of the sash is conveniently provided with a longitudinalange-extension 39 serving as a nger piece for use in sliding the sashwithin the window frame. The vertical end rails 40 remote from thejamb-ends of the two sash are meeting rails and are provided withobliquely disposed flanges 41 which, in the closed position of the sash,engage each other to provide a weather seal. window frame, the varioussash rails are conveniently formed as aluminum or aluminum-alloyextrusions.

At the corners of each sash, the joining side rails are convenientlymitered and secured together in a manner illustrated in Fig. 5. As thereshown, the web of the rail stock is deformed inwardly to provideparallel walls 48 perforated for the reception of a screw 49. One of theholes provided for each screw is a clearance hole while the other is ofsmaller diameter, and the screw is preferably of the self-tappingvariety.

To reduce friction and facilitate sliding movement of the sash, lpreferably associate with the sill of the window frame a bearing strip51 (Fig. 1) formed of a metal i,

different` from that of the lower sash-.rails 36.A `If such 21, 22, and23 of the frame-sill and two upwardly opening grooves into which thelower sash-rails extend. The strip 51 lies loosely on the upper edges ofthe flanges 21, 22, and 23 so that it can readily be removed forcleaning Like the side members of the ases-,e46

hereinafter. 'To provide for the escape of any moisture collecting inthe sash-receiving grooves of the strip 51, suelr grooves; are providedin their Bottoms with holes 52, and the ilan-ges 21 and 22. are providedadjacent the web 270"- witlr openings' through ywhichany collectedmoisture can escape to the outside of the window frame.- Iiy dc sited,the' exterior edge of the strip` 51 may terminate in a" ffange 54-co'nceafing the openings in the ange 21 but spaced upwardly slightlyfrom the web 20 so as not to trap any moisture. The lower sash rails iitsnugly within the grooves of the strip' 51 to provide a weather seal.

To' reduce' sliding friction at the top of the sash, the head 22" of theHnge 22 on the top' member of the window' frame) be embraced by abearing strip 55 (.Fig. 3*); they edges of which are bent around thehead 22; to h`o`ld the Strip` place'. To facilitate removal of the sash,the upper s'as'h rails do not fit snugly between the bearingr strip 55and the flanges 21 and 23. To provide a weather seal between the uppersash rails and the bearing.

strip 55",` I may use the arrangement illustrated in Figs. 3 ar'1`d4. Asthere' shown, the web of each upper sash rail is' oif=set downwardlyV atintervals to provide recesses each receiving the head of a wear button57 having a shank 58 projecting through an opening in that ange of thesash-rail which is remote from the frame-flange 22 for engagement withthe other sash-guiding frame-flange 21 or 23. The head of each button 57is recessed for reception `of a compression spring 59 which urges thebutton-shank 58 Vinto engagement with such frame-flange 221 or 23'and,by reacting on the sash-rail, resiliently forces the latter into contactwith the bearing strip 55.

As willv be clear from Figs. 1 and 3, there is a substanti'al'r gapbetween the upper sash rails and the bases ofthe channels in theframe-headwhich slidably receive them.. The extentv of this gap4 is suchas to permitv each sash to be raised until the lower sash rail. clearsthe walls of. its groove in the bearing. strip 51, whereupon the loweredge: of the sash can be swung inwardly and the sash lowered to removeit from the window frame,

as for purposes of washing. Conveniently, the heads of the buttons 57are non-circularand engage the sash-rail to prevent rotation of eachbutton about the axis of the shank 58, and the upper edges of thebutton-Shanks 58 are chamfered to facilitate re-insertion of the sash inthe frame.

A preferred form of means for locking the sliding sash in' closedposition is illustrated in Figs. 6, 7, and 8. As there shown, themeeting rail. 40 of the inner sash carries a lockebase 65 upon which ispivotally mounted a camlike lotkintgv member 66 eti-operating with akeeper 67 secured to the meeting rail 40 of.- the outer sash. The keeper67 is conveniently formed of a rectangular plate of resilient metal,preferably stainless steel, and is provided at one end 'with an opening68 for the reception of the dam of the locking member 66. At itsopposite end', the keeper 67 is bent back on itself, as indicated at 69(Fig. 8`) to embrace' the edge of the vintermediate ange on the meetingrail 40, the web of the meeting rail being perforated adjacent suchflange to receive both the body of the keeper and the in-bent portion69. At that end of the keeper remote from the opening 68 slots areprovided defining a tongue 70 which is struck from the plane of thekeeper, as shown in Fig. 8. The keeper is brought into association withthe meeting rail 40 of the outer sash passing it through the slots inthe web off such rail. lThe slot which receives thebody of the keeperhas a' width only slightly greater than the thickness of the materialfrom which the keeper is formed so that, as` the keeper approaches itsfinal position, the-voue" struck tongue 70 engages the side of such slotand is resiliently deected into the plane of the keeper. When the keeperreaches its iinal position, the free end of the tongue 70 clears thesidel of' the slot, and the tongue springs vback to its originalposition. to engage the web of the rail 40 at the side of the slot andprevent removal ofthe keeper from. association with: the rail.

In the window shown in the drawing and above1 described, both sash areslidable. However, many' features of my invention areA usable with equaladvantage in a window having' one sash slid-able and the other xed..One' such latter arrangement is shown in4 my priorrv copending'application Serial. No; 443,675, tiled July I5, 1954, which becamePatent No. 2,804,954 on September 3, 1957, of which this application isa division.

I claim as my invention:

l. A window structure, comprising a rectangular frame having sidessurrounding a central opening andv provided with three longitudinalflanges projecting into' Said open.- ing in parallel spaced relation to`define two sash-receiving grooves, the intermediate one of said flangeshaving a v head extending along its free edge, a metal bearing stripembracing said head and having edge portions. bent behind' said head' tohold it in place thereon, sash respectively slidable in said grooves,and yielding means carried byV each of said sash for resiliently urgingthe sash into. contact with said bearing strip.

2. A window structure comprising a rectangular framev having sidessurrounding a central opening and provided with iirst and' secondlongitudinal frame-flangesprojectingy into said opening in parallelspaced relation to define a sash-receiving groove, a sash slidablelongitudinally of said frame and having a side rail slidably received insaid groove said side rail having first and second spaced. flangesextending parallel to and respectively adjacent said rst and secondframe-flanges, said first rail-flange having an opening extendingthrough it, a member Slidably received in said opening and projectingtherethrough f or engagement with said first frame-harige, and.yielding, means acting between said member and said second railflangefor urging said member against the first framei flangel and. the sashrail into engagement with said second. frame-flange.

n 3. A window structure as set forth in claim 2 with the addition thatsaid member is provided between the sash rails with a recessed head,said yieldingl means being. a helical. compression spring received inthe recess'of said head.

4. A window structure as set forth in claim 2 with the addition that theopening in said rst rail flange is circular, said member being providedbetween said rail flanges with a head having a flat side, said sash railhaving a web interconnecting said rail flanges and engageable by theflat side of said head to prevent rotation of the member in saidopening.

References Cited in the le of this patent UNITED STATES PATENTS1,736,169 Plym Nov. 19,1929 1,748,986 Lane Mar. 4, 1930 2,200,548 Gradyet al. May 14, 1940 2,440,026 Smith Apr. 20, 1948 2,588,432 Tomsche Mar.11, 1952 2,663,917 Peterson Dec. 29, 1953 2,667,669 Cook et al. Feb. 2,1954 2,685,110 Hauck Aug. 3, 1954 2,733,487 Hauck Feb.V 7, 19,562,787,034 Hauck Apr. 2, 1957

